#include "../apue.h"
#include <sys/wait.h>
#include <limits.h>

int main(void)
{
    char * a = (char *)0;
    char * b = NULL;
    char * c = (char *)10;

    printf("a:%p, b:%p c:%p\n", a, b, c);

    printf("sysconf(_SC_NZERO): %ld.\n", sysconf(_SC_NZERO));

    printf("unsigned long size: %zd MAX: %lu\n", sizeof(long), ULONG_MAX);
    printf("unsigned long long size: %zd MAX: %llu\n", sizeof(long long), ULLONG_MAX);

    printf("process nice: %d\n", nice(0));

}


